Pneumatic Connection Solutions Expert
Pneuflex is manufacturing pneumatic push in fittings, push to connect fittings, composite & brass push-in fittings, plastic & sintered silencers, brass fittings, flow control valves, quick coupling, pneumatic tubing and plastic tubing in China.
/ / / BESL-S Slot Speed Control Muffler

Slot speed control silencer (flow control muffles) provides an infinite variation of metering air flow at an acceptable sound level on exhaust ports of air valve with complete safety. Slot speed control silencer (flow control muffler) can also be used as filters to protect pneumatic valves by preventing dirt and other foreign matter entering the system. Designed with an adjustment screw and lock nut could easily adjust exhaust air flow to control air tool speed and sound level at confined space. The muffler element is made of sintered brass and the base is made of brass.

Available thread types and sizes:

• PT, R, BSPT; NPT; BSPP, G; Metric Thread
• 1/8" to 2", M8 to M20
Slot Speed Control Silencer, Flow Control Muffler, Sintered Brass Muffler and Silencer    Fluid Admitted Compressed Air
   Working Pressure 0—1 MPa | 150 psi
   Working Temperature -25°C—80°C | -13°F—176°F
   Body (noise absorbing material) Sintered Brass
   Base (thread, needle, knob, lock nut) Brass
Thread Standard and Type
PT, R, BSPT - 55° Taper Pipe Thread
R1/8 R1/4 R3/8 R1/2 R3/4 R1 R1-1/4 R1-1/2 R2
BSPP, G - 55° Parallel Pipe Thread
G1/8 G1/4 G3/8 G1/2 G3/4 G1 G1-1/4 G1-1/2 G2
UNF NPT - 60°American Standard Taper Pipe Thread
10-32 UNF 1/8 NPT 1/4 NPT 3/8 NPT 1/2 NPT 3/4 NPT 1 NPT 1-1/4 NPT 1-1/2 NPT 2 NPT
Metric Thread
M5 x 0.8 M6 x 1 M8 x 1 M8 x 1.25 M10 x 1 M10 x 1.25 M12 x 1.25 M12 x 1.5 M14 x 1.5 M16 x 1.5 M20 x 1.5

PT, R, BSPT Thread

Part No. PT, R, BSPT Thread
BESL-S 01 R1/8
BESL-S 02 R1/4
BESL-S 03 R3/8
BESL-S 04 R1/2
BESL-S 06 R3/4
BESL-S 08 R1
BESL-S 10 R1-1/4
BESL-S 12 R1-1/2
BESL-S 16 R2

BSPP, G Thread

Part No. BSPP, G Thread
BESL-S G01 G1/8
BESL-S G02 G1/4
BESL-S G03 G3/8
BESL-S G04 G1/2
BESL-S G06 G3/4
BESL-S G10 G1-1/4
BESL-S G12 G1-1/2

NPT Thread

Part No. NPT Thread
BESL-S N01 1/8 NPT
BESL-S N02 1/4 NPT
BESL-S N03 3/8 NPT
BESL-S N04 1/2 NPT
BESL-S N06 3/4 NPT
BESL-S N10 1-1/4 NPT
BESL-S N12 1-1/2 NPT

Metric Thread

Part No. Metric Thread
BESL-S M8 x 1 M8 x 1
BESL-S M8 x 1.25 M8 x 1.25
BESL-S M10 x 1 M10 x 1
BESL-S M10 x 1.25 M10 x 1.25
BESL-S M12 x 1.25 M12 x 1.25
BESL-S M12 x 1.5 M12 x 1.5
BESL-S M14 x 1.5 M14 x 1.5
BESL-S M16 x 1.5 M16 x 1.5
BESL-S M20 x 1.5 M20 x 1.5


Slot Speed Control Silencer, Sintered Bronze Muffler

*Information contained herein may be changed without prior notification.